National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field experiment was conducted during Kharif season of 2015 on loamy sand soil to study the effect of phosphorus levels and thiourea on productivity, nutrient content and uptake of urdbean. Experiment consisted of four treatments of phosphorus levels (0, 20, 40 and 60 kg/ha) and five thiourea treatments (control, thiourea 500 ppm at branching, thiourea 500 ppm at branching and flowering, thiourea 1000 ppm at branching and thiourea 1000 ppm at branching and flowering) thereby making twenty treatment combinations tested in randomized block design with three replications. Result indicated that application of phosphorus up to 40 kg/ha significantly increased seed and straw yield, net returns, protein content in seed, nitrogen, phosphorus and potassium concentration in seed and straw and total uptake of nitrogen, phosphorus and potassium over preceding levels and remained at par with 60 kg/ha. Whereas, raising the level of phosphorus from 0 to 20 kg/ha registered the highest agronomic efficiency, apparent recovery and physiological efficiency of phosphorus after that, it showed significant decline upto 60 kg/ha. Application of thiourea 500 ppm at branching and flowering registered significantly higher concentration of N and P in seed and straw and total uptake of N, P and K as well as protein content in seed and available P2O5 in soil after crop harvest over thiourea (500 ppm) at branching and control. Whereas the highest agronomic efficiency and apperent recovery of P recorded under thiourea 500 ppm at branching and flowering and physiological efficiency under control.
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